If none of the computers display lights go on when you press the power switch and your
computer was running previously and shut down correctly, it is possible that
the power cord is loose, the electric outlet or power strip is faulty or
possibly someone inadvertently turned off the power from a wall switch or
power strip. In the extreme case, the power supply or motherboard may have
failed due to wear and/or surges from electricity.
Start by verifying that the power strip or wall
outlets is turned on and that it has power. If this is not the problem then
unplug the computers power cord from the computer and plug it back in regardless
if it seems to be okay. Press the power button on the computer. If the computer
starts great, your in business. If you tried all of these things and the
computer does not turn on, than it is probably a faulty power supply. The
first thing to remember is that just because the computer was fine the night
before does not mean that the power supply could not have died during the
computers shutdown process.
